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DSS News
D. J. Power, Editor
May 23, 2004 -- Vol. 5, No. 11
A Bi-Weekly Publication of DSSResources.COM
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Check the case by Databeacon Staff on the
East of England Observatory at DSSResources.COM
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Featured:
* Ask Dan! - How does planning differ from decision-making?
* What's New? at DSSResources.COM
* DSS News Releases
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2004 Crystal Ball User Conference, June 17-18, Denver, CO
URL http://www.decisioneering.com/cbuc/
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Ask Dan!
by Dan Power
How does planning differ from decision-making?
This frequently asked question seems straight forward and easy to
answer, but it is one that I have grappled with for many years.
Discriminating decision-making from planning can potentially assist in
the design and implementation of decision support systems. It seems
useful to ask "Are the two concepts synonyms, or highly interrelated
concepts or superordinate/subordinate concepts? Does planning involve
decision-making? Does decision-making involve planning? Are both
concepts part of a broader conceptual process called problem solving?"
This Ask Dan! summarizes some conclusions that I have reached over the
past 30 years, some thoughts of others and more importantly it provides
a departure point for designers of computerized DSS who need to grapple
with the intended purpose of the systems they want to build.
At DSSResources.COM decision support systems (DSS) are defined as a
class of computerized information systems that support decision-making
activities. So decision-making is a central concept in building and
studying DSS. The first book about decision-making that I recall reading
was by Frank Harrison shortly after it was published in 1975. Harrison's
book "The Managerial Decision-Making Process" still resides in my
library. At the time, the book cost me USD $11.95 for a course that I
was taking from Prof. Gerald Rose at the University of Iowa. Jerry was
my first mentor in the intersecting realm of computers and
decision-making. Harrison reviews various definitions of the term
decision-making. Reviewing the book today, I am impressed with the
broad multi-disciplinary perspective that Harrison used to try to frame
the complex process of decision-making. In subsequent years I've
quickly scanned later editions, but his perspective seems to have
remained fixed.
In his overview chapter, Harrison quotes from a book co-authored by two
of my professors at the University of Wisconsin-Madison, Andre Delbecq
and Larry Cummings. That book "Organizational Decision Making" by
Shull, Delbecq and Cummings (1970) has also had a major impact on my
thinking. A quick scan of the indexes of both Harrison and Shull et al.
shows however a major disconnect in resolving this Ask Dan! question.
Neither book includes planning as a topic or key term in the index.
Planning seems to have been excluded from the scope of decision making
in the 1970s. The logic and structure of Shull et al. is credited in the
preface as owing much to both Herbert Simon and Victor Thompson.
Reading both Simon and Thompson is important in gaining a behavioral and
a more macro organizational perspective on decision making, but again
neither author resolves the current question.
My first exposure to an academic perspective on planning came from
George Strother at UW-Madison. George was a retired Navy officer and he
approached business planning and strategy from a military perspective
and he conceptualized planning as "anticipatory decision-making". At
Wisconsin in the late 1970's, George Huber introduced me to another
variant perspective. For a year, I worked as Huber's graduate assistant
helping with his book (1980) "Managerial Decision Making". Huber took
much more of a decision analytical and group process perspective on
decision making. That research experience only emphasized for me the
conceptual limitations imposed on decision-making and planning research.
In retrospect, the compartments identified by Harrison stemming from
psychological, sociological and quantitative decision making research
have not been integrated, resolved or completely understood. From my
vantage point and review of the literature, a conceptual "black hole"
remains. Decision making attracts our attention, but we can not seem to
escape with a sense of understanding or even satiation.
Intellectually, the late Herbert Simon has probably had more direct and
indirect impact upon my thinking about decision making and decision
support than has any one person, but his 1960 definition of decision
making is too narrow a conceptualization for building decision support
systems. Simon wrote "Decision making comprises three principal phases:
finding occasions for making a decision; finding possible courses of
actions; and choosing among courses of action (p. 1)." Some authors
expand or reinterpret Simon's concept to include implementation as part
of decision making, but that is an inadequate reconceptualization.
Decision making or decision-making is a much more complex concept and it
subsumes planning. Planning is "anticipatory decision-making". Plans are
preliminary decisions that may be adjusted and changed by circumstances
before an action is actually executed. A need for action termed a
contingency is anticipated and various courses of action are then
evaluated prior to the time when a final commitment to act must be made.
What differs in action-oriented decision making and in planning
situations? One factor that seems salient is the time pressure to act.
In a planning situation decision making proceeds without extreme time
pressure and then on a continuum time pressure increases as crisis
decision making is triggered. Planning assumes a decision maker has
anticipated a relevant contingency. Action-oriented decision making
occurs in the context of a more pressing need for a decision. Also, the
potential impact on future behavior of the relevant players differs,
plans and anticipatory decision making can change emergent behavior even
if the plan is not eventually enacted. Action-oriented decision making
may actually often be reactionary and because action closely follows
decision, the time for reflection is limited.
Action-oriented decision making is about action in the "here and now",
the present, and planning decision making is about anticipated action in
the future. Action-oriented decision making often focuses on evaluating
and approving a "single" course of action that may extend during
implementation over a significant period of time. Then incremental
adjustments in a decision may occur during implementation.
Anticipatory decision making, a.k.a. planning, often focuses on
designing and evaluating a set or sequence of actions that may be
implemented over a period of time at some point in the future either in
response to a specific contingency or as part of a broader intended
strategy.
Both planning and decision making can be conceptualized as skills for
individuals and as processes completed by a single individual, a group,
an organization, or by a collection of stakeholders. Some authors use
planning and decision making as synonyms; some authors emphasize
procedural and quantitative approaches when defining decision making;
other authors emphasize behavioral and process elements of an ambiguous
"decision making process". The two concepts are highly interrelated and
DSS researchers can use decision making as an umbrella term. I'll
reserve a discussion of problem solving to another Ask Dan! column.
So ... a planning support system is a DSS. Planning models can be
included in model-driven DSS. DSS can assist with a wide variety of
planning tasks. All five categories of DSS are relevant for assisting
with planning tasks and anticipatory decision making. DSS can support
real-time, action-oriented decision making and DSS can assist in
anticipatory contingency-oriented decision making.
According to Shull, Delbecq and Cummings (1970), "Man's life is an
ongoing stream of decisions, a continuum of choice-making imperatives.
... A significant part of man's life reflects the decision process --
even some habitual behavior can be viewed as automatic responses to
choices previously made. For this reason alone, decision making merits
study and evaluation (pps. 3-4)." Thanks Andre and Larry.
On a related note, my Web publishing venture is branching out to include
a new website, PlanningSkills.COM. This "sister" site to
DSSResources.COM is under development, but the skeleton of the site is
online. The ontology to support the knowledge repository is almost
finalized. We are currently developing seven content channels with that
content categorized on three dimensions: application domain, planning
situation, and planning topic. We would appreciate any feedback on the
categorization scheme. The plan is to store categorized content in a
MySQL database with some file pointers and then to use PHP to generate
dynamic web content that is reponsive and targeted to user requests.
This is a major new project for us. As always visit our Web sites, send
your complements and constructive suggestions and please tell your
friends about us. If you are a subscriber to DSSResources.COM, thanks.
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References
Harrison, E. F., The Managerial Decision-Making Process, Boston, MA:
Houghton Mifflin Company, 1975.
Huber, G. P., Managerial Decision Making, Glenview, IL: Scott, Foresman
and Co., 1980.
Shull, F. A., jr., A. L. Delbecq, and L. L. Cummings, Organizational
Decision Making, New York, NY: McGraw-Hill, 1970.
Simon, H. A., Administrative Behavior, New York, NY: The Macmillan
Company, 1947.
Simon, H. A., The New Science of Management Decision, New York, NY:
Harper and Row, 1960.
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What's New? at DSSResources.COM
05/14/2004 Posted case by Databeacon Staff, "East of England Observatory
adopts hosted services decision support solution". Check the cases page.
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Put your ad here! Reach hundreds of people
interested in DSS with information on your product
Email power@dssresources.com for details
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DSS News - May 10 to May 21, 2004
Read them at DSSResources.COM and search the DSS News Archive
05/21/2004 Call for Papers: Data Warehousing 2004, Nov. 3-4, 2004
Friedrichshafen, Germany; due May 31, 2004.
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05/18/2004 Organizations turn to Information Builders for Business
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05/18/2004 TIBCO Software Inc. extends Business Activity Monitoring
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05/17/2004 SAIC's TeraText Solutions signs agreement with Stellent.
05/17/2004 Celequest announces Retail Solution Template for delivering
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05/17/2004 Experian launches Decision Insight commercial credit
decisioning tool.
05/13/2004 SIG DSS pre-ICIS Workshop Call for Participation.
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05/11/2004 Premier to incorporate medical evidence from Zynx Health into
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05/11/2004 Firstlogic introduces next-generation data quality platform.
05/11/2004 Annual Hyperion survey shows sharp increase in use of
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05/11/2004 Documentum delivers new standards-based portlet development
toolset and portlets.
05/10/2004 Loram formalizes business processes and gains competitive
advantage using Stellent Universal Content Management.
05/10/2004 TIBCO Software Inc. launches new government solutions
practice and executive briefing center.
05/10/2004 NexPrise introduces two new applications: Cost Estimation and
New Product Introduction.
05/10/2004 Geac integrates its performance management offerings with
multiple Geac back-office product families.
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DSS News is copyrighted (c) 2004 by D. J. Power. Please send your questions to
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